/* ============================================
   RADAR IMOBILIÁRIO IA - CSS Principal
   ============================================ */

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #1a73e8;
  --primary-dark: #1557b0;
  --primary-light: #e8f0fe;
  --success: #0d904f;
  --success-light: #e6f4ea;
  --warning: #e37400;
  --warning-light: #fef7e0;
  --danger: #d93025;
  --danger-light: #fce8e6;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f4;
  --gray-200: #e8eaed;
  --gray-300: #dadce0;
  --gray-400: #bdc1c6;
  --gray-500: #9aa0a6;
  --gray-600: #80868b;
  --gray-700: #5f6368;
  --gray-800: #3c4043;
  --gray-900: #202124;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --transition: all 0.2s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--gray-50);
  color: var(--gray-900);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover { color: var(--primary-dark); }

img { max-width: 100%; display: block; }

/* === SIDEBAR === */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  background: var(--white);
  border-right: 1px solid var(--gray-200);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

.sidebar-brand {
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-brand .brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), #4285f4);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  font-weight: 700;
}

.sidebar-brand h1 {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.2;
}

.sidebar-brand span {
  font-size: 11px;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
}

.nav-section {
  margin-bottom: 8px;
}

.nav-section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 8px 12px 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--gray-700);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.nav-link:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
}

.nav-link .nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.nav-link .nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: white;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 10px;
  min-width: 20px;
  text-align: center;
}

/* === MAIN CONTENT === */
.main-content {
  margin-left: 260px;
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 50;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-left h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--gray-900);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--gray-500);
}

.breadcrumb a {
  color: var(--gray-500);
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb .separator {
  color: var(--gray-400);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-search {
  position: relative;
}

.topbar-search input {
  width: 280px;
  padding: 8px 12px 8px 36px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--gray-50);
  transition: var(--transition);
}

.topbar-search input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

.topbar-search .search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-500);
  font-size: 16px;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--gray-700);
  cursor: pointer;
  padding: 4px;
}

/* === CONTENT AREA === */
.content {
  padding: 24px 32px;
}

/* === CARDS === */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
}

.card-body {
  padding: 20px;
}

.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--gray-200);
  background: var(--gray-50);
}

/* === STAT CARDS === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: var(--transition);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.stat-icon.blue { background: var(--primary-light); color: var(--primary); }
.stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-icon.orange { background: var(--warning-light); color: var(--warning); }
.stat-icon.red { background: var(--danger-light); color: var(--danger); }

.stat-info {
  flex: 1;
  min-width: 0;
}

.stat-label {
  font-size: 13px;
  color: var(--gray-500);
  font-weight: 500;
  margin-bottom: 4px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.2;
}

.stat-change {
  font-size: 12px;
  font-weight: 600;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* === GRID LAYOUTS === */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* === PROPERTY CARDS === */
.properties-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.property-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.property-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.property-card-image {
  position: relative;
  height: 200px;
  background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  font-size: 48px;
  overflow: hidden;
}

.property-card-image .placeholder-icon {
  opacity: 0.5;
}

.property-card-score {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  backdrop-filter: blur(10px);
}

.score-excellent { background: rgba(13,144,79,0.9); color: white; }
.score-great { background: rgba(26,115,232,0.9); color: white; }
.score-good { background: rgba(227,116,0,0.9); color: white; }
.score-average { background: rgba(154,160,166,0.9); color: white; }
.score-below { background: rgba(217,48,37,0.9); color: white; }

.property-card-type {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(255,255,255,0.95);
  color: var(--gray-700);
  text-transform: capitalize;
}

.property-card-drop {
  position: absolute;
  bottom: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(217,48,37,0.9);
  color: white;
  display: flex;
  align-items: center;
  gap: 4px;
}

.property-card-body {
  padding: 16px;
}

.property-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.property-card-location {
  font-size: 13px;
  color: var(--gray-500);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.property-card-price {
  font-size: 22px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 12px;
}

.property-card-details {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--gray-200);
}

.property-detail {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--gray-600);
}

.property-detail .detail-icon {
  color: var(--gray-400);
}

.property-card-m2 {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--gray-500);
  margin-top: 8px;
}

.property-card-m2 strong {
  color: var(--primary);
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: var(--font);
}

.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--white);
  color: var(--gray-700);
  border: 1px solid var(--gray-300);
}
.btn-secondary:hover {
  background: var(--gray-50);
  border-color: var(--gray-400);
}

.btn-success {
  background: var(--success);
  color: white;
}
.btn-success:hover { background: #0b7d45; }

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
}

/* === FILTERS === */
.filters-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  align-items: flex-end;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 150px;
}

.filter-group label {
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.filter-group input,
.filter-group select {
  padding: 8px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: var(--white);
  color: var(--gray-900);
  transition: var(--transition);
  font-family: var(--font);
}

.filter-group input:focus,
.filter-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

/* === SHORTCUTS === */
.shortcuts-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.shortcut-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-700);
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font);
}

.shortcut-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.shortcut-btn.active {
  border-color: var(--primary);
  color: var(--white);
  background: var(--primary);
}

/* === PROPERTY DETAIL === */
.property-hero {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 24px;
  margin-bottom: 24px;
}

.property-gallery {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  font-size: 80px;
}

.property-info {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  padding: 24px;
}

.property-info-header {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-200);
}

.property-info-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.property-info-location {
  font-size: 14px;
  color: var(--gray-500);
  display: flex;
  align-items: center;
  gap: 4px;
}

.property-info-price {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  margin: 16px 0;
}

.property-info-score {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 0;
  padding: 12px;
  background: var(--gray-50);
  border-radius: var(--radius);
}

.score-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.score-excellent .score-circle { background: var(--success); }
.score-great .score-circle { background: var(--primary); }
.score-good .score-circle { background: var(--warning); }
.score-average .score-circle { background: var(--gray-500); }
.score-below .score-circle { background: var(--danger); }

.score-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
}

.score-description {
  font-size: 13px;
  color: var(--gray-600);
  margin-top: 2px;
}

.property-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 16px 0;
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--gray-50);
  border-radius: var(--radius-sm);
}

.spec-icon {
  color: var(--gray-400);
  font-size: 16px;
}

.spec-label {
  font-size: 12px;
  color: var(--gray-500);
}

.spec-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
}

/* === COMPARABLES === */
.comparables-section {
  margin-top: 24px;
}

.comparable-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 8px;
  transition: var(--transition);
}

.comparable-card:hover {
  background: var(--gray-50);
}

.comparable-score {
  font-size: 18px;
  font-weight: 700;
  width: 48px;
  text-align: center;
}

.comparable-info {
  flex: 1;
}

.comparable-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
}

.comparable-details {
  font-size: 13px;
  color: var(--gray-500);
}

.comparable-price {
  text-align: right;
}

.comparable-price-value {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-900);
}

.comparable-price-m2 {
  font-size: 12px;
  color: var(--gray-500);
}

/* === PRICE HISTORY === */
.price-history-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-100);
}

.price-history-date {
  font-size: 13px;
  color: var(--gray-500);
  min-width: 80px;
}

.price-history-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-900);
}

.price-history-change {
  font-size: 13px;
  font-weight: 600;
}

.price-history-change.down {
  color: var(--danger);
}

/* === MAP === */
.map-container {
  height: 500px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
}

#map {
  height: 100%;
  width: 100%;
}

/* === ALERTS === */
.alert-item {
  display: flex;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition);
}

.alert-item:hover {
  background: var(--gray-50);
}

.alert-item.unread {
  background: var(--primary-light);
}

.alert-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.alert-icon.opportunity { background: var(--success-light); color: var(--success); }
.alert-icon.price-drop { background: var(--danger-light); color: var(--danger); }
.alert-icon.top10 { background: var(--primary-light); color: var(--primary); }

.alert-content {
  flex: 1;
}

.alert-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 2px;
}

.alert-message {
  font-size: 13px;
  color: var(--gray-600);
  margin-bottom: 4px;
}

.alert-date {
  font-size: 12px;
  color: var(--gray-500);
}

/* === IMPORT === */
.import-zone {
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.import-zone:hover,
.import-zone.dragover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.import-zone .import-icon {
  font-size: 48px;
  color: var(--gray-400);
  margin-bottom: 16px;
}

.import-zone h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.import-zone p {
  font-size: 14px;
  color: var(--gray-500);
}

.import-preview {
  margin-top: 24px;
  overflow-x: auto;
}

.import-preview table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.import-preview th,
.import-preview td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.import-preview th {
  background: var(--gray-50);
  font-weight: 600;
  color: var(--gray-700);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.import-preview td {
  color: var(--gray-600);
}

/* === TABLES === */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.data-table th {
  background: var(--gray-50);
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-600);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.data-table td {
  font-size: 14px;
  color: var(--gray-700);
}

.data-table tr:hover td {
  background: var(--gray-50);
}

/* === CHART CONTAINER === */
.chart-container {
  position: relative;
  height: 300px;
  padding: 16px;
}

.chart-canvas {
  width: 100%;
  height: 100%;
}

/* === TABS === */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--gray-200);
  margin-bottom: 20px;
}

.tab {
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-600);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.tab:hover {
  color: var(--gray-900);
}

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* === MODALS === */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--white);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: var(--transition);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--gray-500);
  cursor: pointer;
  padding: 4px;
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--gray-200);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }

/* === EMPTY STATES === */
.empty-state {
  text-align: center;
  padding: 48px;
  color: var(--gray-500);
}

.empty-state .empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 14px;
  max-width: 400px;
  margin: 0 auto;
}

/* === LOADING === */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--gray-300);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === TOAST === */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--gray-900);
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
  max-width: 400px;
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.info { border-left: 4px solid var(--primary); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .property-hero { grid-template-columns: 1fr; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .menu-toggle { display: block; }
}

@media (max-width: 768px) {
  .content { padding: 16px; }
  .topbar { padding: 0 16px; }
  .topbar-search input { width: 180px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .properties-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .filters-bar { flex-direction: column; }
  .filter-group { min-width: 100%; }
  .property-specs { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat-card { flex-direction: column; text-align: center; }
  .stat-icon { margin: 0 auto; }
  .topbar-search { display: none; }
}

/* === SIDEBAR OVERLAY === */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}

@media (max-width: 1024px) {
  .sidebar-overlay.active {
    display: block;
  }
}

/* === UTILITIES === */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.font-bold { font-weight: 700; }
.text-muted { color: var(--gray-500); }
.text-sm { font-size: 13px; }
.w-full { width: 100%; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }